Mirrors/Velocity
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Mirror von https://github.com/PaperMC/Velocity.git synchronisiert 2024-12-23 23:00:35 +01:00
Code Issues Pakete Projekte Releases Wiki Aktivität

Fix up player info forwarding.

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Dieser Commit ist enthalten in:
Andrew Steinborn 2018-08-11 00:22:24 -04:00
Ursprung 95bd152fee
Commit 8068f72729
4 geänderte Dateien mit 47 neuen und 76 gelöschten Zeilen
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64
proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java
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@ -15,7 +15,6 @@ import com.velocitypowered.proxy.protocol.packet.*;
import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelPipeline;
import net.kyori.text.TextComponent;
import javax.crypto.Mac;
@ -23,27 +22,16 @@ import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.CompletableFuture;
public class LoginSessionHandler implements MinecraftSessionHandler {
private final ServerConnection connection;
private ScheduledFuture<?> forwardingCheckTask;
private boolean informationForwarded;
public LoginSessionHandler(ServerConnection connection) {
this.connection = connection;
}
@Override
public void activated() {
if (VelocityServer.getServer().getConfiguration().getPlayerInfoForwardingMode() == PlayerInfoForwarding.MODERN) {
forwardingCheckTask = connection.getMinecraftConnection().getChannel().eventLoop().schedule(() -> {
connection.getProxyPlayer().handleConnectionException(connection.getServerInfo(),
TextComponent.of("Your server did not send the forwarding request in time. Is it set up correctly?"));
}, 1, TimeUnit.SECONDS);
}
}
@Override
public void handle(MinecraftPacket packet) {
if (packet instanceof EncryptionRequest) {
@ -60,11 +48,7 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
connection.getProxyPlayer().getRemoteAddress().getHostString(),
connection.getProxyPlayer().getProfile()));
connection.getMinecraftConnection().write(response);
cancelForwardingCheck();
ServerLogin login = new ServerLogin();
login.setUsername(connection.getProxyPlayer().getUsername());
connection.getMinecraftConnection().write(login);
informationForwarded = true;
} else {
// Don't understand
LoginPluginResponse response = new LoginPluginResponse();
@ -75,16 +59,21 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
}
} else if (packet instanceof Disconnect) {
Disconnect disconnect = (Disconnect) packet;
connection.disconnect();
// Do we have an outstanding notification? If so, fulfill it.
doNotify(ConnectionRequestResults.forDisconnect(disconnect));
connection.getProxyPlayer().handleConnectionException(connection.getServerInfo(), disconnect);
connection.disconnect();
} else if (packet instanceof SetCompression) {
SetCompression sc = (SetCompression) packet;
connection.getMinecraftConnection().setCompressionThreshold(sc.getThreshold());
} else if (packet instanceof ServerLoginSuccess) {
if (VelocityServer.getServer().getConfiguration().getPlayerInfoForwardingMode() == PlayerInfoForwarding.MODERN &&
!informationForwarded) {
doNotify(ConnectionRequestResults.forDisconnect(
TextComponent.of("Your server did not send a forwarding request to the proxy. Is it set up correctly?")));
connection.disconnect();
return;
}
// The player has been logged on to the backend server.
connection.getMinecraftConnection().setState(StateRegistry.PLAY);
ServerConnection existingConnection = connection.getProxyPlayer().getConnectedServer();
@ -96,37 +85,26 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
existingConnection.disconnect();
}
// Do we have an outstanding notification? If so, fulfill it.
doNotify(ConnectionRequestResults.SUCCESSFUL);
connection.getMinecraftConnection().setSessionHandler(new BackendPlaySessionHandler(connection));
connection.getProxyPlayer().setConnectedServer(connection);
}
}
@Override
public void deactivated() {
cancelForwardingCheck();
}
@Override
public void exception(Throwable throwable) {
connection.getProxyPlayer().handleConnectionException(connection.getServerInfo(), throwable);
}
private void doNotify(ConnectionRequestBuilder.Result result) {
ChannelPipeline pipeline = connection.getMinecraftConnection().getChannel().pipeline();
ServerConnection.ConnectionNotifier n = pipeline.get(ServerConnection.ConnectionNotifier.class);
if (n != null) {
n.getResult().complete(result);
pipeline.remove(ServerConnection.ConnectionNotifier.class);
CompletableFuture<ConnectionRequestBuilder.Result> future = connection.getMinecraftConnection().getChannel()
.attr(ServerConnection.CONNECTION_NOTIFIER).getAndSet(null);
if (future != null) {
future.completeExceptionally(throwable);
}
}
private void cancelForwardingCheck() {
if (forwardingCheckTask != null) {
forwardingCheckTask.cancel(false);
forwardingCheckTask = null;
private void doNotify(ConnectionRequestBuilder.Result result) {
CompletableFuture<ConnectionRequestBuilder.Result> future = connection.getMinecraftConnection().getChannel()
.attr(ServerConnection.CONNECTION_NOTIFIER).getAndSet(null);
if (future != null) {
future.complete(result);
}
}

40
proxy/src/main/java/com/velocitypowered/proxy/connection/backend/ServerConnection.java
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@ -18,6 +18,7 @@ import com.velocitypowered.proxy.VelocityServer;
import com.velocitypowered.proxy.connection.client.ConnectedPlayer;
import io.netty.channel.*;
import io.netty.handler.timeout.ReadTimeoutHandler;
import io.netty.util.AttributeKey;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
@ -31,7 +32,8 @@ import static com.velocitypowered.network.Connections.READ_TIMEOUT;
import static com.velocitypowered.network.Connections.SERVER_READ_TIMEOUT_SECONDS;
public class ServerConnection implements MinecraftConnectionAssociation {
static final String CONNECTION_NOTIFIER = "connection-notifier";
static final AttributeKey<CompletableFuture<ConnectionRequestBuilder.Result>> CONNECTION_NOTIFIER =
AttributeKey.newInstance("connection-notification-result");
private final ServerInfo serverInfo;
private final ConnectedPlayer proxyPlayer;
@ -55,9 +57,9 @@ public class ServerConnection implements MinecraftConnectionAssociation {
.addLast(FRAME_DECODER, new MinecraftVarintFrameDecoder())
.addLast(FRAME_ENCODER, MinecraftVarintLengthEncoder.INSTANCE)
.addLast(MINECRAFT_DECODER, new MinecraftDecoder(ProtocolConstants.Direction.CLIENTBOUND))
.addLast(MINECRAFT_ENCODER, new MinecraftEncoder(ProtocolConstants.Direction.SERVERBOUND))
.addLast(CONNECTION_NOTIFIER, new ConnectionNotifier(result));
.addLast(MINECRAFT_ENCODER, new MinecraftEncoder(ProtocolConstants.Direction.SERVERBOUND));
ch.attr(CONNECTION_NOTIFIER).set(result);
MinecraftConnection connection = new MinecraftConnection(ch);
connection.setState(StateRegistry.HANDSHAKE);
connection.setAssociation(ServerConnection.this);
@ -93,7 +95,7 @@ public class ServerConnection implements MinecraftConnectionAssociation {
}
private void startHandshake() {
PlayerInfoForwarding forwardingMode = VelocityServer.getServer().getConfiguration().getPlayerInfoForwardingMode();
PlayerInfoForwarding forwardingMode = VelocityServer.getServer().getConfiguration().getPlayerInfoForwardingMode();
// Initiate a handshake.
Handshake handshake = new Handshake();
@ -111,12 +113,9 @@ public class ServerConnection implements MinecraftConnectionAssociation {
minecraftConnection.setProtocolVersion(protocolVersion);
minecraftConnection.setState(StateRegistry.LOGIN);
// Send the server login packet for <=1.12.2 and for 1.13+ servers not using "modern" forwarding.
if (protocolVersion <= ProtocolConstants.MINECRAFT_1_12_2 || forwardingMode != PlayerInfoForwarding.MODERN) {
ServerLogin login = new ServerLogin();
login.setUsername(proxyPlayer.getUsername());
minecraftConnection.write(login);
}
ServerLogin login = new ServerLogin();
login.setUsername(proxyPlayer.getUsername());
minecraftConnection.write(login);
}
public ConnectedPlayer getProxyPlayer() {
@ -140,25 +139,4 @@ public class ServerConnection implements MinecraftConnectionAssociation {
public String toString() {
return "[server connection] " + proxyPlayer.getProfile().getName() + " -> " + serverInfo.getName();
}
static class ConnectionNotifier extends ChannelInboundHandlerAdapter {
private final CompletableFuture<ConnectionRequestBuilder.Result> result;
public ConnectionNotifier(CompletableFuture<ConnectionRequestBuilder.Result> result) {
this.result = result;
}
public CompletableFuture<ConnectionRequestBuilder.Result> getResult() {
return result;
}
public void onComplete() {
result.complete(ConnectionRequestResults.SUCCESSFUL);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
result.completeExceptionally(cause);
}
}
}

4
proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java
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@ -247,7 +247,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
@Override
public void fireAndForget() {
connect()
.whenComplete((status, throwable) -> {
.whenCompleteAsync((status, throwable) -> {
if (throwable != null) {
handleConnectionException(info, throwable);
return;
@ -267,7 +267,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
handleConnectionException(info, Disconnect.create(status.getReason().orElse(ConnectionMessages.INTERNAL_SERVER_CONNECTION_ERROR)));
break;
}
});
}, connection.getChannel().eventLoop());
}
}
}

15
proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionRequestResults.java
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@ -3,6 +3,7 @@ package com.velocitypowered.proxy.connection.util;
import com.velocitypowered.api.proxy.ConnectionRequestBuilder;
import com.velocitypowered.proxy.protocol.packet.Disconnect;
import net.kyori.text.Component;
import net.kyori.text.TextComponent;
import net.kyori.text.serializer.ComponentSerializers;
import java.util.Optional;
@ -42,4 +43,18 @@ public class ConnectionRequestResults {
}
};
}
public static ConnectionRequestBuilder.Result forDisconnect(TextComponent component) {
return new ConnectionRequestBuilder.Result() {
@Override
public ConnectionRequestBuilder.Status getStatus() {
return ConnectionRequestBuilder.Status.SERVER_DISCONNECTED;
}
@Override
public Optional<Component> getReason() {
return Optional.of(component);
}
};
}
}